This so-called dirty thing is what people commonly refer to as a "ghost".
Lv Zhong had possessed the [Micro Yin-Yang Eye] for quite some time, and through Lv Yue's memory, he discovered that "ghosts" do exist in this world. However, Lv Zhong himself had never seen a so-called "ghost", which made him somewhat curious.
From Lv Yue's memory, he knew that generally, once a primate dies, its ghost is usually immediately taken away by the reincarnation light of the Six Paths of Reincarnation. Therefore, there are very few ghosts in the Yang Realm. However, "few" does not mean "none".
Some ghosts die unjustly and as their allotted lifespan is not yet exhausted, they cannot be reincarnated, turning into wandering ghosts. If such ghosts devour each other, it would cultivate extremely powerful ghosts. These ghosts can threaten the peace of the Yang Realm when they become powerful enough.
Thus, there are exorcist cultivators in the Yang Realm.
